Yes, the Facebook Catalog still keeps showing draft products after manual sync.
We would expect the following behavior when editing a product on WP:
1. Whenever a published product is marked as draft, send a request to Facebook to mark it as hidden, then disable auto sync.
We haven’t gone through all the Facebook products and remove them in our catalog as they are more than 300 and doesn’t seems to be an option now to delete a bulk of them.